Hook attachment



May 13 1924.

L. M. P. HARDY HOOK ATTACHMENT Filed Nov. 13 1920 mama/3a 92am); INVENTOR- ll/W'SSfIS ATTORNEY.

f atented May 13, 192%.

LAURISTO'N M. P. HARDY, OF NEW IPSWICH, NEW HAMPSHIRE.

HOOK ATTACHMENT.

Application filed November 18, 1920. Serial No. 423,875.

To all whom it may concern:

Be it known that l, LAURISTON M. P. HARDY, a citizen of the United States, residing at New Ipswich, in the county of Hillsborough and State of New Hampshire, have invented certain new and useful Improvements in Hook Attachments, of which the following is a specification.

This invention relates to new and useful improvements in hook attachments, the primary object of the invention being to pro vide guards for the pointed ends of hooks or other similar articles in order to prevent the pointed ends of the hooks from penetrating i. or damaging various objects with which they engage, such as roofs, when the device is applied to a ladder hook, in order to prevent the pointed end of the hook from damaging the roof.

Another object of the invention is to provide a guardv or attachment with an angularly disposed lip-portion whereby the device may properly engage the ridge of the roof for properly suspending a ladder; the invention also providing the guard with a convexed face, whereby the guard may be rocked so that it may be positioned in proper engagement with various parts of a roof.

Another object of the invention is to provide a guard with adjustable spurs, which may or may not be used, the use thereof depending upon the function to be performed or the character of the material with which the guard contacts.

Other objects and advantages of the invention will become apparent during the course of the following description.

In the accompanying drawings wherein like numerals are used to designate like parts throughout the several views,

Figure 1 is a side elevation of the invention showing its use on a roof.

Figure 2 is an enlarged side elevation of the invention, with a part thereof in section. Figure 3 is an end elevation of the device, and

Figure 4 is a side elevation of a modified form of the invention.

Referring to the drawings, wherein for the purpose of illustration is shown the preferred embodiment of my invention, the nu meral 5 designates the well-known ladder hook, which embodies a stationary jaw 6 and a movable jaw 7 whereby the aws may engage with a pair of rungs of a ladder 8. Past use of such ladder hooks has proven the ridge of the roof, for the pointed ends of I the ladder hooks penetrate and tear through roofs covered with tarpaper, slate, shingles, and other similar coverings. The invention has therefore been developed to prevent the hooks from injuring roof-coverings and other surfaces.

The invention assumes the form of a guard member having its body portion 10 provided with an enlarged portion 11, extending longitudinally of the body portion and provided with a longitudinally extending opening 12, forming a socket. As most clearly shown in Figure 2, the opening is tapered from its outer larger end to receive the tapered and pointed end 9 of the ladder hook 5. In order to securely retain the guard upon the pointed end of the hook, a thumb screw 13 is threaded through the enlar ement 11 to extend into the opening 12 and ear against the pointed end of the hook. If desired, the hook may be provided with a notch to receive the inner end of the thumb-screw, so as to preclude the possibility of the hook slipping from contact with the screw.

The engaging face 14: of the body portion is slightly arcuated or convexed outwardly as clearly shown in Figure 2, so that it will slide readily with that which it engages. The transverse end of the body portion opposite the end into which the hook is inserted, is provided with a transversely curved lipportion 15, the outer curved surface of which merges into the curved edge 14 of the body portion. It will be seen that the free edge of the lip-portion is arranged slightly above the plane of the inner face of the body portion and adjacent this edge. I provide the lip with a pair of spaced threaded openings with which are engaged adjustable spurs 17 These spurs are in the form of thumb-screws having their free threaded ends pointed as at 18, whereby they may engage parts of buildings or other objects to prevent slipping of the ladder. It will be further noted that the spurs extend longitudinally of the guard, and that their free pointed ends 18 may be projected beyond the convexed face 16 of the lip-portion.

To illustrate the use of the invention, we will assume that it is used as a guard for a ladder hook 5 which is attached to the ladder in the manner shown in Figure 1. When the ladder is moved up or down the side, of the gable roof, as seen in Figure 1 of the drawing, it will be apparent that the convex faces 14 and 16 will be engaged with the side of the roof and will prevent the point of the ladder hook from engaging the roof to tear or otherwise damage the same. After the ladder has been moved upwardly so that the guard 10 may drop over the ridge of the roof as shown in dotted lines in Fig. 1, the ladder is permitted to slide downwardly until the lip-portion 15 of the guard engages with the ridge of the roof. Such engagement of the guard prevents the ladder from sliding and also prevents the pointed end of thehook from penetrating the surface of the roof. The adjustable spur-s17 may or may not be used according to the judgment of the mechanic, but may be adjusted so that the pointed end 18 will project beyond the curved outer face of the lip portion to engage the ridge of a roof, or it may be moved intothe lip-portion so as to prevent its engagement with a surface. It will be noted that the lip-portion is spaced a substantial distance from the inner end of the opening 12 in the enlargement 11, and that the opening 12 extends entirely through the enlargement 11, whereby hooks of varying length may be readily associated with the guard.

In the modified form of the invention, I have illustrated a guard for a swinging stage hook 19. The guard for such hooks preferably consists of a body portion 20, having its free end 21 angularly disposed and equipped with an opening through which the end of the hook is adapted to pass. This angular portion 21 provides the body portion with a socket, and in order to retain the guard upon the hook in the proper position. a screw 22 is threaded through the angular portion to project into the opening and engage with the hook. The opposite end of the body portion is provided with a surface engaging member 23 the upper face of which is provided with a recess 24, at the base of the body portion for the reception of the pointed end of the hook. In the present instance, the surface engaging portion 23 is elongated and perfectly flat so that it may be adapted for use in connection with roofs or other surfaces for suspending the stage hooks.

The foregoing description and accompanying drawings have reference to what might be considered to be the approved or preferredform of my invention. I desire it to be understood that I may make such changes in the construction, combination and arasagna rangement of parts, material s, dimensions, et cetera, as may prove expedient and fall within the scope of the appended claims.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is 1. A ladder hook guard comprising a body portion clamping means carried thereby and adapted to receive the pointed end of said hook, and said guard having a surface approximately parallel to the pointed end of the hook upon which surface the guard is moved.

2. A ladder hook guard, comprising a body-portion, clamping means carried thereby and adapted to receive the pointed end of said hook, said guard having a surface approximately parallel to the pointed end of the hook upon which surface the guard is moved, and one end of said body-portion being provided with a second surface disposed at an angle to the first surface and upon which the guard is supported.

3. A ladder hook guard, comprising a body-portion, clamping means carried thereby, one end of said body portion being provided with an angularly disposed lip-portion and adjustable spurs mounted in the lipportion.

1. A ladder hook guard, comprising a body portion having a socket therein to receive said hook, means for clamping said hook in said socket, and a face of the body portion being convexed outwardly, said guard adapted to be slidably moved on one portion of said convexed face, and supported by another portion of said face.

5. A ladder hook guard comprising a body portion, having a face upon which the guard is moved, clamping means carried by said body portion, and one end of the body portion being angularly disposed to provide a transverse lip, a face of the lip being convexed to merge into the body portion and forming means for supporting the guard.

6. A ladder hook guard, comprising a bodyportion, having an enlarged portion thereon, said enlarged portion having an opening extending longitudinally thereof from end to end to provide socket means, to receive the pointed end of said hook, said guard having a surface approximately parallel to the pointed end of the hook upon which surface the guard is moved, and one end of the body portion being angularly disposed and spaced a substantial distance from the inner end of said opening to form a surface upon which the guard is supported.

7. A ladder hook guard. comprising a body portion, having an enlarged portion made integral therewith, extending longitudinally of the body portion and provided with a longitudinally extending opening forming a socket, said socket tapering from its outer larger end, and adapted to receive the pointed end of said ladder hook, clamping means carried by said body portion adapted to engage said ladder hook, and one end of the body portion being angularly disposed to provide a transverse lip, a face of the lip being convexed to merge into the body portion and forming means for supporting the guard, and adjustable spurs associated with said body portion.

8. A hook guard comprising a body porclamping means carried thereby and tion,

the pointed end of said adapted to receive hook, and an elongated surface engaging 1 portion adapted to support said guard upon a roof.

In testimony whereof I afiix my signature in presence of two witnesses.

LAURISTON M. P. HARDY.

Witnesses:

MABEL M. Jones, Anorn A. HARDY. 

